梵網經古迹記 2.182

2.182

述曰：《菩薩地》云：物主迷物，賤價而賣。菩薩教悟，如價賈之。然此偽器，少與多取，違犯乃深，故今制也。今為護財，畜刀杖故，與前愛殺而畜者別。此是在家，雖許販賣，但不得以偽秤斗也。此自身官，破他成功，領非功物，異前憑他。既取他與，非盜戒攝。養猫狸等，覓財具也。

The commentary states: The Bodhisattvabhūmi says: 'The owner of an item is confused about its value and sells it cheaply; the bodhisattva enlightens them and buys it at its proper price.' However, with these counterfeit measures, giving little and taking much, the transgression is profound, and therefore it is now prohibited. Here, keeping knives and staves is done to protect wealth, which differs from the previous precept where they were kept out of a love for killing. This pertains to laypeople; although they are permitted to engage in trade, they must not use counterfeit scales and measures. If one holds an official post oneself, undermines another's success, and accepts property one has not earned, this differs from the previous case of relying on others. Since one takes what another gives, it is not subsumed under the precept against stealing. Raising cats, civets, and the like is done to seek the means of wealth.